Qwt User's Guide: qwt_compass_rose.h Source File

Qwt User's Guide 6.3.0

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qwt_compass_rose.h
1/******************************************************************************
2 * Qwt Widget Library
3 * Copyright (C) 1997 Josef Wilgen
4 * Copyright (C) 2002 Uwe Rathmann
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the Qwt License, Version 1.0
8 *****************************************************************************/
9
10#ifndef QWT_COMPASS_ROSE_H
11#define QWT_COMPASS_ROSE_H
12
13#include "qwt_global.h"
14#include <qpalette.h>
15
16class QPainter;
17
21 class QWT_EXPORT QwtCompassRose
22{
23 public:
24 QwtCompassRose();
25 virtual ~QwtCompassRose();
26
27 virtual void setPalette( const QPalette& );
28 const QPalette& palette() const;
29
39 virtual void draw( QPainter* painter,
40 const QPointF& center, double radius, double north,
41 QPalette::ColorGroup colorGroup = QPalette::Active ) const = 0;
42
43 private:
44 Q_DISABLE_COPY(QwtCompassRose)
45
46 QPalette m_palette;
47};
48
52 class QWT_EXPORT QwtSimpleCompassRose : public QwtCompassRose
53{
54 public:
55 QwtSimpleCompassRose( int numThorns = 8, int numThornLevels = -1 );
56 virtual ~QwtSimpleCompassRose();
57
58 void setWidth( double );
59 double width() const;
60
61 void setNumThorns( int );
62 int numThorns() const;
63
64 void setNumThornLevels( int );
65 int numThornLevels() const;
66
67 void setShrinkFactor( double factor );
68 double shrinkFactor() const;
69
70 virtual void draw( QPainter*,
71 const QPointF& center, double radius, double north,
72 QPalette::ColorGroup = QPalette::Active ) const QWT_OVERRIDE;
73
74 static void drawRose( QPainter*, const QPalette&,
75 const QPointF& center, double radius, double north, double width,
76 int numThorns, int numThornLevels, double shrinkFactor );
77
78 private:
79 class PrivateData;
80 PrivateData* m_data;
81};
82
83#endif
QwtCompassRose
Abstract base class for a compass rose.
Definition qwt_compass_rose.h:22
QwtCompassRose::draw
virtual void draw(QPainter *painter, const QPointF &center, double radius, double north, QPalette::ColorGroup colorGroup=QPalette::Active) const =0
QwtSimpleCompassRose
A simple rose for QwtCompass.
Definition qwt_compass_rose.h:53